Debugging done, apparently this is the first 2002 Dakota with Fed emissions to use HPT... database (?) is not up to date and the table mapping is not there. May have this ironed out before end of next week.

 

The dutch tuner i spoke over here said the same thing, the tables and others are not complete on the JTEC PCM's to tune.

 

word has it the hpt engineers will look at the data collected and have me do another read for them, then update beta should he good to go after that.

 

Almost all 01+ came as 50 state emissions with four O2's and 3 cats. Your 49 state (now 48 state) federal truck is definitely a unicorn in that department. Very high likeliness that it was custom ordered by a dealer not in Cali or New York, so it was assembled to the more relaxed requirement. Most assembly line trucks didn't know what state they'd ship to, so they were 50-compliant (can't ship a 48/49 state truck to Cali or NY).

SCT has pretty much owned the 97-04 DCX market. I think HPT picked up 01-04 DCX support only a couple years ago.

 

yeah all of the trucks i iooked at in the yards a few weeks back were cali trucks with 3 cats. looking forward to the first tune, it is an e-fan temp mod tune. once that is in, will yank the clutch and evaluate temps. if still running to hot, then swap in the 180 and block flow across the core to get my target temp of 190-195 and have the fans on at 195.

 

New York adopted Cali emissions in 1996 for 6,000 GVWR or less and 2000 for 8,500 GVWR. So for our generation of trucks, most are 50 state emissions, very few (especially post-2000) were 48 state emissions.

 

Update: Still no update... lol

I did hear back from HPT on the issue and he reports there has been no progress yet, meaning they have not worked on it. He (hpt) did mention he was going to ping the group again and escalate to upper management to get movement on it.

 

I'm excited to see how this all goes! It seems like things are getting decently ironed out now with HPT for the jtec. Subscribed so I can see how they handle this.

 

Finally got some movement on this.... HPT is requesting a fresh debug file with the latest Beta s/w, debug hooks installed to help troubleshooting.

 

Update... got an obd port connector pigtail and the ECM harness from a truck today, will be building a bench setup to talk to the ECU and eliminate the truck. HPT says the controllers cannot communicate between the HPT & the ECM... Doing this will eliminate the truck all together.